May Weather in Joroinen, Finland

Last updated: August 23, 2025

In May, the average temperature in Joroinen, Finland hovers around 9°C (49°F), with potential extremes ranging from a chilly -4°C (26°F) to a warm 29°C (84°F). Expect an average precipitation of 58 mm (2.3 in) over 11 days, contributing to a relatively high humidity of 78%.

May Temperature in Joroinen

In May in Joroinen, the average temperature is 9°C (49°F). The maximum can reach 29°C (84°F), while the minimum can be as low as -4°C (26°F). Be prepared for a wide range of temperatures when traveling to Joroinen during this month, and pack accordingly!

May Weather in Joroinen: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Joroinen, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Joroinen, May typically has an average temperature of 9°C (49°F), with highs reaching up to 29°C (84°F) and lows dropping to around -4°C (26°F).

Data source: Temperature data for Joroinen generated using information from the Copernicus Climate Change Service.

May Precipitation in Joroinen

In Joroinen in May, the precipitation amount is 58 mm (2.3 in) over the course of 11 days.

May Precipitation Trends in Joroinen

The chart displays monthly precipitation patterns in Joroinen, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Joroinen, May typically receives around 58 mm (2.3 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

May Humidity in Joroinen

In Joroinen in May, humidity is 78%. With an average temperature of 9°C (49°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while traveling, as the cool air combines with the moisture to create a brisk and invigorating atmosphere.

May Average Humidity in Joroinen

This chart illustrates the average monthly humidity levels in Joroinen, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Joroinen is approximately 78%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Joroinen

In Joroinen in May, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Joroinen.

Maximum UV Index Levels in Joroinen for May

The chart shows the monthly maximum UV Index (UVI) for Joroinen in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In May, the maximum UV index in Joroinen typically reaches 5, which falls under the moderate exposure category.

Data source: Joroinen May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How May Weather in Joroinen Compares to Other Months

Weather in Joroinen varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Joroinen, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Joroinen, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (22°F)	48 mm (1.9 inches)	99%	low
February Weather	-6°C (21°F)	42 mm (1.7 inches)	98%	low
March Weather	-3°C (27°F)	44 mm (1.7 inches)	95%	moderate
April Weather	2°C (36°F)	44 mm (1.7 inches)	87%	moderate
May Weather	9°C (49°F)	58 mm (2.3 inches)	78%	moderate
June Weather	16°C (61°F)	63 mm (2.5 inches)	75%	high
July Weather	17°C (63°F)	82 mm (3.2 inches)	83%	high
August Weather	15°C (60°F)	84 mm (3.3 inches)	88%	moderate
September Weather	10°C (51°F)	77 mm (3.0 inches)	92%	moderate
October Weather	5°C (42°F)	73 mm (2.9 inches)	95%	low
November Weather	1°C (34°F)	61 mm (2.4 inches)	94%	low
December Weather	-4°C (26°F)	67 mm (2.6 inches)	98%	low